If you have purchased the site of something else:
-> Send an email to
support@phparcadescript.comWith your name, PayPal address and arcade link. Include the fact that you just bought the arcade of someone else.
Wait untill you have received a reply. You could face something bad if you don't have permission to transfer the license and you did.
If you have purchased the license directly off this site:
-> Start installing!
If you need any help i'd gladly give you a hand, although I'm sure Scott (the owner) would do a much better job than me at explaining it)